| General > General Technical Chat |
| What happend to 320K resistors ? |
| << < (3/27) > >> |
| Jan Audio:
Ofcourse i want the precision for a DAC, because i could buy them some time ago i dont want those 316K. They just disapear ?, someone has buyed them since they have nothing left. Why not make a few to keep stock ?, is it so difficult ? |
| bdunham7:
Exactly what were you buying before that you can't get now? Are the ones I posted not what you need??? Other than '320K' what are the rest of the specs you need or had? |
| JohnnyMalaria:
--- Quote from: Jan Audio on February 19, 2021, 04:09:40 pm ---Ofcourse i want the precision for a DAC, because i could buy them some time ago i dont want those 316K. They just disapear ?, someone has buyed them since they have nothing left. Why not make a few to keep stock ?, is it so difficult ? --- End quote --- Mouser has them. Granted, it's overseas but you have a very specific requirement so your options are going to be limited. Alternatively, buy a lot of 10% or 20% 330K and measure each one. One will be 320K. |
| nali:
--- Quote from: Jan Audio on February 19, 2021, 04:09:40 pm ---Ofcourse i want the precision for a DAC, because i could buy them some time ago i dont want those 316K. They just disapear ?, someone has buyed them since they have nothing left. Why not make a few to keep stock ?, is it so difficult ? --- End quote --- Just wondering, why do you need such precision when you only have 6 bits anyway? |
| Siwastaja:
What's wrong with the classic R2R DAC that uses a single value of resistor? What's wrong in putting another resistor in series? How are you driving your resistor DAC? From standard CMOS outputs of an MCU or logic IC? :popcorn: I think the problem isn't sourcing 320kOhm resistors; it's designing a DAC. Let's start by defining your requirements for the DAC. |
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